Mai Chazis Dedamach Sumak Tfei would mean that you are not required to kill yourself. I can’t think of a scenario where this is Noge’a since being used passively in a murder (or even Orayos — Karka Olam) is not Yehoreg V’al Yavor.
On the other hand Rav Kahana jumped off a roof so as not to be forced into an Aveira, and Eliyahu Hanavi had to save him. The Yaavetz also holds that when it started out as your fault then it is better you harm yourself Beyadayim.